The selection tool has not been removed.
If you go to your output window, and click on the "S" key, does the selection tool appear? And then if you click on the "A" key, does the arrow pointer come back?
What I assume you are experiencing is either that you are not aware of the "hidden" pulldown menu/toolbar screen, at the top of each JMP window, or the View==>Toolbars
not been selected.
Could you be a little more descriptive about your current setup, etc?
Jim